view mod_fallback_vcard/mod_fallback_vcard.lua @ 5193:2bb29ece216b

mod_http_oauth2: Implement stateless dynamic client registration Replaces previous explicit registration that required either the additional module mod_adhoc_oauth2_client or manually editing the database. That method was enough to have something to test with, but would not probably not scale easily. Dynamic client registration allows creating clients on the fly, which may be even easier in theory. In order to not allow basically unauthenticated writes to the database, we implement a stateless model here. per_host_key := HMAC(config -> oauth2_registration_key, hostname) client_id := JWT { client metadata } signed with per_host_key client_secret := HMAC(per_host_key, client_id) This should ensure everything we need to know is part of the client_id, allowing redirects etc to be validated, and the client_secret can be validated with only the client_id and the per_host_key. A nonce injected into the client_id JWT should ensure nobody can submit the same client metadata and retrieve the same client_secret
author Kim Alvefur <zash@zash.se>
date Fri, 03 Mar 2023 21:14:19 +0100
parents ceb594a14a18
children
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local datamanager = require "util.datamanager";
local usermanager = require "core.usermanager";
local st = require "util.stanza";
local host = module.host;
local jid_split = require "util.jid".split;

local orgname = module:get_option_string("default_vcard_orgname");
local orgmail = module:get_option_boolean("default_vcard_orgmail");

module:hook("iq/bare/vcard-temp:vCard", function(event)
	local session, stanza = event.origin, event.stanza;
	local to = stanza.attr.to;
	local username = jid_split(to);
	if not username then return end

	local vcard = datamanager.load(username, host, "vcard");
	local data = datamanager.load(username, host, "account_details");
	local exists = usermanager.user_exists(username, host);
	module:log("debug", "has %s: %s", "vcard", tostring(vcard));
	module:log("debug", "has %s: %s", "data", tostring(data));
	module:log("debug", "has %s: %s", "exists", tostring(exists));
	data = data or {};

	if not(vcard) and data and exists then
		-- MAYBE
		-- first .. " " .. last
		-- first, last = name:match("^(%w+) (%w+)$")
		local vcard = st.reply(stanza):tag("vCard", { xmlns = "vcard-temp" })
			:tag("VERSION"):text("3.0"):up()
			:tag("N")
				:tag("FAMILY"):text(data.last or ""):up()
				:tag("GIVEN"):text(data.first or ""):up()
			:up()
			:tag("FN"):text(data.name or ""):up()
			:tag("NICKNAME"):text(data.nick or username):up()
			:tag("JABBERID"):text(username.."@"..host):up();
		if orgmail then
			vcard:tag("EMAIL"):tag("USERID"):text(username.."@"..host):up():up();
		elseif data.email then
			vcard:tag("EMAIL"):tag("USERID"):text(data.email):up():up();
		end
		if orgname then
			vcard:tag("ORG"):tag("ORGNAME"):text(orgname):up():up();
		end
		session.send(vcard);
		return true;
	end
end, 1);